When a guy and a girl simultaneously take a dump together while having the sex. The guy sits like normal and the girl straddles him facing the other way. They then begin coitus while also shitting. The girl tries to shit between the man's legs but isn't always successful. This is usually preceded by a blumpkin.
Susan and I had both just eaten a spicy meal which caused us to have to shit, but we were feeling frisky, so we decided to perform the criss-cross chocolate sauce.
When two men next to each other simultaneously jerk each other off with their arms crossed over one another.
Bro, neither of us have gotten laid in a while. Want to criss-cross mammal sauce?
Using sauce from one brand with food from another.
I was cross saucing with my McNuggets in CFA sauce.
While you're on top of the female, your uncle comes and puts his penis in the females mouth with his butt facing the other guy. The other guy then shoots his semen onto the uncle's butt-hole and lets the nut drip onto the face of the female.
Last night, I was doing a Criss Cross Uncle Sauce with Kevin and his uncle.